/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendDocument.h
Performs union of provided NodeID set with the set of NodeIDs that have been modified since last context reset/construction.
void AddNodeIDsModified ( const [TSet](API\Runtime\Core\Containers\TSet)< [FGuid](API\Runtime\Core\Misc\FGuid) > & InNodeIDsModified )